简单3D打印晶格结构的固有频率

2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE) Pub Date : 2021-07-16 DOI:10.1109/ICMAE52228.2021.9522431

K. Monkova, P. Monka, Ján Vanca, R. Hricová, L. Knapčíková, D. Kozak, P. Beno

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引用次数: 1

摘要

本文讨论了由简单体心立方元在三个方向上相乘而成的简单晶格结构样品的模态分析。采用FDM技术，采用3D打印技术，以ABS材料为材料，生产了5个相同类型的样品。实验研究了单自由度线性粘滞阻尼系统在谐波激励下750hz范围内的固有频率，从而评估了以位移传递率为特征的振动阻尼特性。在PTC Creo 7软件中对1500 Hz范围内的前5个固有模态和频率进行了数值分析。通过比较由数值方法和实验方法获得的第一阶固有频率，可以说明数值之间具有相对较高的一致性。所获得的知识将成为进一步研究和分析实际组件的基础，以便在实践中应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Natural Frequencies of a Simple 3D Printed Lattice Structure

The paper deals with the modal analysis of a sample with a simple lattice structure created by the multiplication of a simple Body Centered Cubic cell in all three directions. Five samples (of the same type) were produced from ABS material by means of 3D printing technology employing the FDM technique. Natural frequencies in the range up to 750 Hz were experimentally investigated under harmonic excitation of a linear viscously damped system with single-degree-of- freedom that allows evaluating the vibration damping properties characterized by the displacement transmissibility. The first five natural modes and frequencies in the range up to 1500 Hz were evaluated by numerical analysis in PTC Creo 7 software. By comparing the first natural frequencies obtained by the numerical and experimental approaches, it was possible to state a relatively high agreement between the values. The acquired knowledge will form the basis for further studies and analyzes of real components intended for their application in practice.

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2021 12th International Conference on Mechanical and Aerospace Engineering (ICMAE)

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